os.initgroups(username, gid) Call the system initgroups() to initialize the group access list with all of the groups of which

winsound.MessageBeep(type=MB_OK) Call the underlying MessageBeep() function from the Platform API. This plays a

ctypes.util.find_msvcrt() Windows only: return the filename of the VC runtime library used by Python, and by the extension modules

ArgumentParser.add_argument(name or flags...[, action][, nargs][, const][, default][, type][, choices][, required][, help][, metavar][, dest])

class typing.Union Union type; Union[X, Y] means either X or Y. To define a union

turtle.onscreenclick(fun, btn=1, add=None)

hash.block_size The internal block size of the hash algorithm in bytes.

os.confstr(name) Return string-valued system configuration values. name specifies the configuration value to retrieve;

normalize(context=None) Normalize the number by stripping the rightmost trailing zeros and converting any result equal to

curses.is_term_resized(nlines, ncols) Return True if resize_term() would modify the window structure